Quill

Lesson in the Scala Roadmap · Stage 31: Video game Engines

Last updated 14 September 2026

What is Quill?

Quill is a library for database access in Scala that provides a Quoted Domain Specific Language (QDSL) to express queries in Scala and execute them in a target language. It supports compile-time query generation and validation, making it easier to write type-safe and efficient database queries. Quill is designed to minimize boilerplate and support multiple target languages, including SQL and Cassandra Query Language (CQL).

Study this in the interactive course See the whole Scala roadmap

Free resources to learn Quill

ArticleWorking with Databases using Scala and Quill
ArticleCompile-time Queries with Quill
ArticleDatabase Queries with Quill

Quill: common questions

Can I learn Quill in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Quill in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Quill tutorial for beginners?

It is lesson 154 of 165 in the free Scala roadmap, in stage 31, Video game Engines. If you are new to Scala, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.